Home / 1,398,274.84-2,097,457.35-387,406.54

Finding the Fourth Proportional to 1,398,274.84, 2,097,457.35 and 387,406.54

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Solution

The fourth proportional to 1,398,274.84, 2,097,457.35 and 387,406.54 is: 581,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,274.84 : 2,097,457.35 = 387,406.54 : x
  2. Step 2: Convert to fraction form
    1,398,274.84/2,097,457.35 = 387,406.54/x
  3. Step 3: Cross multiply
    1,398,274.84x = 2,097,457.35 × 387,406.54
  4. Step 4: Simplify right side
    1,398,274.84x = 812,568,694,761.07
  5. Step 5: Solve for x
    x = 812,568,694,761.07/1,398,274.84
  6. Step 6: Final answer
    x = 581,122.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.